CN203377357U - A miniaturized built-in micro-strip combiner for an LTE base station antenna - Google Patents
A miniaturized built-in micro-strip combiner for an LTE base station antenna Download PDFInfo
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- CN203377357U CN203377357U CN201320492502.1U CN201320492502U CN203377357U CN 203377357 U CN203377357 U CN 203377357U CN 201320492502 U CN201320492502 U CN 201320492502U CN 203377357 U CN203377357 U CN 203377357U
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Abstract
The utility model provides a miniaturized built-in micro-strip combiner for an LTE base station antenna, the built-in micro-strip combiner comprising a dielectric substrate. The lower surface of the dielectric substrate is totally covered with a metal layer; a micro-strip circuit is arranged on the upper surface of the dielectric substrate; the micro-strip circuit comprises a high frequency shunt circuit, a low frequency shunt circuit and a high and low frequency combiner circuit connecting the high frequency shunt circuit and the low frequency shunt circuit; the high frequency shunt circuit is used for transmitting D frequency band signals of a TD-LTE system; the low frequency shunt circuit is used for transmitting FA frequency band signals of a TD-SCDMA system. The built-in micro-strip combiner achieves combination of the TD-SCDMA signals and the TD-LTE signals. The built-in micro-strip combiner can separate adjacent frequency bands and has excellent circuit performances. With reasonable circuit layout, the built-in micro-strip combiner is relatively small in size and thus can be installed in an antenna for use conveniently.
Description
Technical field
The utility model relates to a kind of mixer, relates in particular to a kind of built-in micro-band mixer of TD-LTE antenna for base station.
Background technology
Along with the development of mobile communication technology, original 3G(The Third Generation Mobile telecommunication, 3G (Third Generation) Moblie technology) communication system can not meet the requirement of growing traffic rate and communication quality.For meeting the ever-increasing current demand of mobile data services, and adapt to emerging in large numbers of many new applications such as mobile TV, Web2.0, multimedia game on line, 3GPP(3rd Generation Partnership Project 3 generation collaborative project) developed LTE(Long Term Evolution, Long Term Evolution) standard, and the following target that reaches the descending 100Mbps of instantaneous peak value and up 50Mbps on the 20MHz bandwidth has been proposed.The development prospect of LTE has attracted concern and the response of whole industrial chain.
Because the 3G system has had a considerable amount of customer volumes, operator does not wish directly to adopt LTE System Replacement 3G system, but within one period 3G system and LTE coexistence of systems, adopt the mode that station is built altogether on base station construction, on antenna-feedback system, the shared surface antenna of 3G and LTE is with the saving cost of building a station.
Generally the mode by built-in mixer realizes that two frequency ranges share radiating element or feeder line.Micro-band mixer has that volume is little, lightweight, low cost and other advantages.One secondary TD-LTE(time-division Long Term Evolution) need to place a plurality of built-in mixers in smart antenna, current built-in micro-band mixer area is larger, therefore is unfavorable for being integrated into antenna inside.And, TD-SCDMA (Time-division-Synchronization Code Division Multiple Access, TD SDMA) the FA frequency range (1880-1920MHz used, the D frequency range (2555-2635MHz) 2010-2025MHz) adopted with TD-LTE is separated by very near, the Out-of-band rejection of two so contiguous frequency ranges being separated and realized being greater than to 30dB, be less than the interior Insertion Loss of band of 0.5dB, traditional built-in micro-band mixer is difficult to meet this performance requirement.
The utility model content
The purpose of this utility model is to provide a kind of area occupied little, built-in micro-band mixer of function admirable; This mixer can be operated in the FA/D frequency range, makes a secondary antenna for base station can receive and dispatch the signal of TD-SCDMA system and LTE system simultaneously.
The technical solution of the utility model is the built-in micro-band mixer of a kind of miniaturization LTE antenna for base station, comprise medium substrate, the lower surface of described medium substrate all is coated with metal level, upper surface is furnished with microstripline, and described microstripline comprises high frequency shunt, low frequency along separate routes and connects high frequency along separate routes and low frequency low-and high-frequency is along separate routes closed road.
And described high frequency shunt and low frequency comprise respectively two open-circuit lines along separate routes, two open-circuit lines microstrip line in a section connects, and at the two ends of middle microstrip line, is extended with respectively left microstrip line and right microstrip line.
And every open-circuit line is comprised of lower end microstrip line and upper end microstrip line, the width of lower end microstrip line and upper end microstrip line does not wait.
And the length of described open-circuit line is 0.2 to 0.3 central task frequency wavelength.
The utility model can be separated contiguous frequency range, and has good circuit performance; By rational line arrangement, make describedly built-inly micro-ly with mixer, there is less size, be convenient to install and use in antenna inside.
The accompanying drawing explanation
Built-in micro-microstrip circuit figure of the front with mixer that Fig. 1 is the utility model embodiment.
embodiment
Describe technical solutions of the utility model in detail below in conjunction with drawings and Examples.
Referring to Fig. 1, the built-in micro-band mixer of a kind of miniaturization LTE antenna for base station that the utility model provides, comprise medium substrate 1, and 1 lower surface of medium substrate all for example, is covered by metal level (copper), and the upper surface etching of medium substrate 1 has microstripline 2.Microstripline 2 is by high frequency along separate routes 3, low frequency along separate routes 4, and connect high frequency along separate routes and low frequency low-and high-frequency along separate routes close road 5 compositions.High frequency shunt 3 is for transmitting the D frequency band signals of TD-LTE system, and low frequency shunt 4 is for transmitting the FA frequency band signals of TD-SCDMA system.Therefore, the utility model provides built-in micro-ly can realize the synthetic of TD-SCDMA signal and TD-LTE signal with mixer.
High frequency shunt 3 and low frequency shunt 4 comprise respectively two open-circuit lines 6.Adjacent open-circuit line by microstrip line 7 connect, respectively extend one section microstrip line at the two ends of middle microstrip line 7, be designated as respectively left microstrip line 8 and right microstrip line 9.Open-circuit line 6, middle microstrip line 7, left microstrip line 8 form band pass filter together with right microstrip line 9.
Referring to Fig. 1, the microstrip line (being designated as respectively lower end microstrip line 10 and upper end microstrip line 11) that every open-circuit line 6 is not waited by two sections width is formed by connecting, and forms SIR (Stepped Impedence Resonator, Stepped Impedance resonator).Because one section microstrip line only can provide a transmission zero, and SIR can provide plural transmission zero, therefore can increase bandwidth of rejection.And, the position of the length that SIR can be by adjusting each section microstrip line and the spurious frequency of the flexible control response of impedance ratio, thus FA and these two nearer frequency ranges of being separated by of D are separated.Theory analysis shows, is greater than two sections impedance matching joints and can not brings extra benefit with respect to two sections impedance matching joints, so the utility model employing two-stage SIR structure, every open-circuit line 6 is connected and composed by two sections microstrip lines.Another advantage of SIR is to be conducive to built-in micro-miniaturization with mixer, by adjusting the impedance ratio of each section microstrip line of SIR, the length that can infinitely dwindle in theory SIR.The utility model adopts the resonant element of SIR as filter, and high frequency shunt 3 and low frequency 4 respectively can realize meeting with two two-stage SIR micro-band mixer that mobile communication requires along separate routes.The quantity that reduces resonant element is conducive to the miniaturization of mixer horizontal direction, by controlling the impedance ratio of each section microstrip line of SIR, can reduce the length of resonator simultaneously, realizes the miniaturization of mixer longitudinal direction.
In embodiment, in open-circuit line 6, the connection of lower end microstrip line 10 and upper end microstrip line 11 is 90 degree, and while specifically implementing, angle is not limit.The length (being the total length of lower end microstrip line 10 and upper end microstrip line 11) of suggestion open-circuit line 6 is arranged on 1/4 left and right of central task frequency wavelength, and setting can make mixer have good filtering performance like this, and keeps little size.Preferably, the length of open-circuit line 6 is 0.2 to 0.3 central task frequency wavelength.
Test known, the utility model provides built-in micro-with mixer at the standing-wave ratio of TD-SCDMA frequency range and TD-LTE frequency range<1.5, Insertion Loss<0.5dB in band, Out-of-band rejection 32dB, meet the index request of the built-in mixer of mobile communication.
Abovely in conjunction with most preferred embodiment, the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains the various modifications of carrying out according to essence of the present utility model and equivalent combinations.
Claims (4)
1. the built-in micro-band mixer of miniaturization LTE antenna for base station, it is characterized in that: comprise medium substrate, the lower surface of described medium substrate all is coated with metal level, upper surface is furnished with microstripline, and described microstripline comprises high frequency shunt, low frequency along separate routes and connects high frequency along separate routes and low frequency low-and high-frequency is along separate routes closed road.
2. the built-in micro-band mixer of a kind of miniaturization LTE antenna for base station according to claim 1, it is characterized in that: described high frequency shunt and low frequency comprise respectively two open-circuit lines along separate routes, article two, open-circuit line microstrip line in a section connects, and at the two ends of middle microstrip line, is extended with respectively left microstrip line and right microstrip line.
3. the built-in micro-band mixer of a kind of miniaturization LTE antenna for base station according to claim 2, it is characterized in that: every open-circuit line is comprised of lower end microstrip line and upper end microstrip line, and the width of lower end microstrip line and upper end microstrip line does not wait.
4. according to the built-in micro-band mixer of the described a kind of miniaturization LTE antenna for base station of claim 2 or 3, it is characterized in that: the length of described open-circuit line is 0.2 to 0.3 central task frequency wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492502.1U CN203377357U (en) | 2013-08-13 | 2013-08-13 | A miniaturized built-in micro-strip combiner for an LTE base station antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320492502.1U CN203377357U (en) | 2013-08-13 | 2013-08-13 | A miniaturized built-in micro-strip combiner for an LTE base station antenna |
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| CN203377357U true CN203377357U (en) | 2014-01-01 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390784A (en) * | 2015-11-19 | 2016-03-09 | 中国电子科技集团公司第四十一研究所 | Ultra-wideband frequency band synthesis circuit |
| CN106159398A (en) * | 2016-08-31 | 2016-11-23 | 广东通宇通讯股份有限公司 | Broadband combiner |
| CN107086345A (en) * | 2017-04-07 | 2017-08-22 | 深圳市华讯方舟微电子科技有限公司 | Ultra wide band wilkinson power divider |
| CN107181024A (en) * | 2017-05-23 | 2017-09-19 | 广东盛路通信科技股份有限公司 | Micro-strip combiner and its mounting structure |
| CN107317589A (en) * | 2017-06-16 | 2017-11-03 | 京信通信系统（中国）有限公司 | Micro-strip combiner and its radio circuit |
| CN108023147A (en) * | 2017-12-29 | 2018-05-11 | 京信通信系统（中国）有限公司 | Combiner, phase shifter package and antenna |
| CN109698397A (en) * | 2018-12-26 | 2019-04-30 | 成都九洲迪飞科技有限责任公司 | A method of realizing micro-strip combiner high-isolation |
| CN109768361A (en) * | 2018-12-29 | 2019-05-17 | 京信通信技术(广州)有限公司 | Micro-strip combiner and smart antenna |
| CN113922019A (en) * | 2020-07-09 | 2022-01-11 | 大富科技(安徽)股份有限公司 | Combiner and communication equipment |
-
2013
- 2013-08-13 CN CN201320492502.1U patent/CN203377357U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390784A (en) * | 2015-11-19 | 2016-03-09 | 中国电子科技集团公司第四十一研究所 | Ultra-wideband frequency band synthesis circuit |
| CN106159398A (en) * | 2016-08-31 | 2016-11-23 | 广东通宇通讯股份有限公司 | Broadband combiner |
| CN107086345A (en) * | 2017-04-07 | 2017-08-22 | 深圳市华讯方舟微电子科技有限公司 | Ultra wide band wilkinson power divider |
| CN107086345B (en) * | 2017-04-07 | 2018-11-30 | 深圳市华讯方舟微电子科技有限公司 | Ultra wide band wilkinson power divider |
| CN107181024A (en) * | 2017-05-23 | 2017-09-19 | 广东盛路通信科技股份有限公司 | Micro-strip combiner and its mounting structure |
| CN107317589A (en) * | 2017-06-16 | 2017-11-03 | 京信通信系统（中国）有限公司 | Micro-strip combiner and its radio circuit |
| CN108023147A (en) * | 2017-12-29 | 2018-05-11 | 京信通信系统（中国）有限公司 | Combiner, phase shifter package and antenna |
| CN108023147B (en) * | 2017-12-29 | 2023-07-21 | 京信通信技术(广州)有限公司 | Combiner, phase shifter assembly and antenna |
| CN109698397A (en) * | 2018-12-26 | 2019-04-30 | 成都九洲迪飞科技有限责任公司 | A method of realizing micro-strip combiner high-isolation |
| CN109768361A (en) * | 2018-12-29 | 2019-05-17 | 京信通信技术(广州)有限公司 | Micro-strip combiner and smart antenna |
| CN109768361B (en) * | 2018-12-29 | 2021-05-28 | 京信通信技术(广州)有限公司 | Microstrip combiner and intelligent antenna |
| CN113922019A (en) * | 2020-07-09 | 2022-01-11 | 大富科技(安徽)股份有限公司 | Combiner and communication equipment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430205 Hubei city of Wuhan province Jiangxia Hidden Dragon Island Tan lake two Road No. 1 Patentee after: CITIC Mobile Communication Technology Co.,Ltd. Address before: 430073 Hubei city of Wuhan province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Patentee before: Wuhan Hongxin Telecommunication Technologies Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee after: CITIC Mobile Communication Technology Co.,Ltd. Address before: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee before: CITIC Mobile Communication Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
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| CX01 | Expiry of patent term |